class Restaurant():
    def __init__(self,restaurant_name,cuisine_type):
        self.restaurant_name = restaurant_name
        self.cuisine_type =cuisine_type
        self.number_served = 0
    
    def describe_restaurant(self):
        print(f'restaurant:{self.restaurant_name}\ncuisine:{self.cuisine_type}')
    def open_restaurant(self):
        print('Open!')
    
    def set_number_served(self,new_number_served):
        self.number_served = new_number_served
    
    def increment_number_served(self,add_new_number):
        self.number_served += add_new_number
        
        
        
        
        
my_restaurant = Restaurant('anya','Chinese')
print(f'there are {my_restaurant.number_served} people have dinner')
my_restaurant.set_number_served(2)
print(f'there are {my_restaurant.number_served} people have dinner')
my_restaurant.increment_number_served(10)
print(f'there are {my_restaurant.number_served} people have dinner')